Poor reception may be caused by a weak signal at your location. Underground or near tall buildings customers will sometimes experience poor reception. Try moving to a location with better access to signals.

The network may be busy at the current time. During peak usage periods, reception can be difficult. Try accessing the network again after waiting for a short time.

You may be too far away from a base station for your service provider. You can request a service area map from your service provider.

Move to an open space or if you are inside a building move closer to a window.

Make sure your device is not in Airplane mode without wireless connectivity. To clear Airplane mode, touch the Status bar and clear the Airplane mode check box.

Make sure the Fixed Dialing Numbers feature has not been activated. Touch the Home button then the Menu button . Choose Settings, Call Settings, and then Fixed Dialing Numbers. Disable Fixed Dialing Numbers.

Make sure the Call Barring feature has not been activated. Touch the Home button then the Menu button . Choose Settings, Call Settings, Additional Call Settings, Call Barring, and then choose Deactivate All.

Move to an open space or if you are inside a building move closer to a window.

Make sure your device is not in Airplane mode without wireless connectivity. To clear Airplane mode, touch the Status bar and clear the Airplane mode check box.

Make sure the Call Barring feature has not been activated. Touch the Home button then the Menu button . Choose Settings, Call Settings, Additional Call Settings, Call Barring, and then choose Deactivate All.

Not all service providers offer all calling features and in some cases, these need to be activated by the individual account holder before they can be used. Contact your service provider for issues with calling features.

The length of standby time is affected by the service provider's configuration. The same device used with different service providers' systems may not have the same length of standby time. If you are located where the network signal is weak, temporarily turn off the device to keep it from searching for a signal base station, which uses more power.

The battery may be depleted or may be affected by adverse temperatures which can shorten battery life. Try charging the battery or using a new fully-charged battery.